baber/WOPTO huggingface dataset:
Patent GB-146981-A (GB)
Title: Improvements in spray carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1920-07-06
Abstract: 146,981. Meyer, H., (Representative of Meyer, G.). July 6, 1914, [Convention date]. Spray carburettors, - The supply of fuel to the nozzles is under the control of a valve in a tube 3, the valve being moved towards its closed position by a tappet 12 and intermediate linkage, when the throttle 11 is fully opened ; simultaneously a supplementary air inlet 21 is also adjusted. The carburettor has three nozzles, a nozzle 23 for slow running, this nozzle being carried by a second nozzle 25 for low speeds; the third nozzle 27 comes into action when the throttle is fully open. The throttle is thickened at one end 28 to close the passage 26 from the nozzle 25 during slow running. The nozzles 25, 27 have a series of fuel outlets 29 leading to the spraying-point, these outlets becoming uncovered as the fuel level falls owing to increased suction; air entering through orifices at the top of the annular chamber 29<1> mixes with the fuel before it is sprayed. The restricted passages 39 limit the flow of fuel to the nozzles. When the engine has stopped, the float valve 36 may be held on its seat by the eccentric 33; the valve may be lifted by the eccentric to increase the fuel supply at starting. The casing for the eccentric is held down by the spring 38.
Patent GB-523194-A (GB)
Title: Improvements in fastening strips containing nuts
IPC: F16B37/04
Filed: 1939-06-29
Abstract: 523,194. Bolting. DYER, J. V. June 29, 1939, No. 18903. [Class 89 (i)] Nuts are attached to a member of a bolted joint difficult of access after assembly by a member bent up into channel form 2 the edges meeting substantially in the centre line of the base part 7. Openings 3 pass the nuts with play and the flanged bases have play in the channel. The nuts may be self-locking as described in Specification 228,505, [Class 89 (i)]. An opening 8 affords corresponding play for the bolt. Alternate openings 3 may give access to smaller openings in the base for attaching the latter to the member of the bolted joint by bolting, riveting, spot welding &c. The base and top surface 1 may have registering rivet &c. holes co-operating with tubular distance pieces or the top surface 1 may be dished at these points into substantial contact with the base. Specifications 476,249 and 483,089 also are referred to.
Patent GB-187300-A (GB)
Title: Improvements in appliances for applying dye or other liquid to the hair
IPC: A45D24/28
Filed: 1922-04-13
Abstract: 187,300. Simpson, S. E. April 13, 1922. Combs, hair.-A comb for applying dyes and other liquids to the hair is provided with a reservoir 2 forming a handle, and containing a cylinder 6, within which works a piston 5 normally pressed upwards by a spring 8. The teeth of the comb are formed hollow, with openings 4 at the sides near the points, and communicate with the cylinder 6 through a passage 3, a non-return valve 9 being preferably provided. Liquid is drawn into the cylinder 6 on the upward stroke of the piston, and expelled through the teeth on depressing the piston. The reservoir 2 is provided with a screw cap for filling.
Patent GB-959108-A (GB)
Title: A method of producing l-threonine by fermentation
IPC: C12P13/08
Filed: 1961-05-25
Abstract: L-Threonine is prepared by aerobically culturing Brevibacterium liticum, Micrococcus rubens, Micrococcus varians, Xanthomonas pruni, Sarcina lutea, or Corynebacterium rathayi in a nutrient medium at 24-37 DEG C. and a pH of 4-7, adding L-homoserine to the medium from 6 to 48 hours after the beginning of the culture, continuing the culture, and isolating L-threonine from the culture medium. Alternatively, L-threonine is prepared by aerobically culturing Micrococcus glutanicus, Vibro percolans, Xanthomonas citri, or Corynebacterium simplex in a nutrient medium containing L-homoserine at 24-37 DEG C. and a pH of 4-7. A source of assimilable carbon is preferably added with the L-homoserine, while the latter is preferably added to the nutrient medium in a number of portions.
Patent GB-593141-A (GB)
Title: Design of bezel sealing of pressure proof cases
IPC: B65D43/02
Filed: 1944-10-04
Abstract: 593,141. Covers for resisting fluid pressure. BENDIX AVIATION CORPORATION. Oct. 4, 1944, No. 19053. Convention date, Oct. 9, 1943. [Class 123 (i)] [Also in Groups XIX and XXVII A joint packing for an instrument casing 10, Fig 3, having an external machine surfaced flange 16 to which is bolted a mating cover flange 11, is characterised by the provision in one flange, say 16, of a groove 17 in which is located packing material of depth exceeding that of the groove, and in the other flange 11 of two matching grooves 13, 14 separated by a rib 15, which though not projecting beyond the flange surface, compresses the packing when the two flanges 11, 16 make mating contact. As shown in Fig. 4, the volume of the packing material projecting from the groove 17, when compressed, in less than the combined volume of the matching grooves 13, 14.
Patent GB-304564-A (GB)
Title: Improved construction of stand for wringing machines
IPC: D06F1/00
Filed: 1928-07-02
Abstract: 304,564. Wrinch, B. T. July 2, 1928. Wringer stands.-A wringer stand comprises four legs A, B, to the top of each two of which, on each side, a rail C, D is secured. The two rails are pivoted together along their bottom edges at E, Fig. 3, and may be further held by brackets G, H, Fig. 1. A board hinged at the centre K, and formed of laths I<1>, J<1> extending between side members I, J is pivoted to the legs. A bracket L is secured to one leg so that the user may steady the stand.
Patent GB-783472-A (GB)
Title: Copper base alloys
IPC: C22C9/00
Filed: 1955-07-01
Abstract: For preventing lead oozing to the surface of bronze alloys containing at least 50 per cent Cu and 1 to 35 per cent Pb during casting of such alloys, 0.05 to 5 per cent misch metal is added to the alloy while in the molten state and the alloy then cast.  The improved bronzes consist of ..1-35 per cent Pb ..3-10 per cent Sn ..0-4.5 per cent Zn ..0-3 per cent Ni 0.05-5 per cent (preferably 0.2-0.5 per cent) misch metal, and the balance, (over 50 per cent), Cu.  The Ce content is 45 to 55 per cent of the amount of misch metal, while the Fe in the misch metal should preferably not exceed 1 per cent.  The alloys are suitable for bearings, armatures and apparatus for the chemical and electrical industries.
Patent GB-112448-A (GB)
Title: Improvements in Devices for Remedying the Drawbacks due to Back-firing when Starting Explosion Engines by Hand.
IPC: F02N1/02
Filed: 1917-12-28
Abstract: 112,448. Gaudier & Kuppel. Jan. 2, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Turning-gear.-A device for disconnecting the starting-handle in the event of premature ignition comprises ratchet teeth b<3> on the shaft b of the starting-handle b<1>, which engage ratchet teeth c<4>, d' on a shaft c adapted to drive the engine shaft and on a loosely mounted disk d<1>, carrying pawls e in engagement with a fixed ratchet wheel e'. The shaft b is slidable in the hollow shaft c, and the parts are normally held out of action by springs f, g. In operation, the handle b<1> is pushed in and drives the members c, d' by means of the teeth b'. The member d' is prevented from rotating backwards by the pawls e, and if the engine turns backwards the teeth d<2> effect the disengagement of the teeth b', c<4>. The parts are enclosed by a casing a closed at one end by a cap a' carrying the ratchet member e'.
Patent GB-1421310-A (GB)
Title: Process for the preparation of citric acid and derivatives thereof
IPC: C07C59/265
Filed: 1974-05-01
Abstract: 1421310 Citric acid and derivatives SNAMPROGETTI SpA 1 May 1974 [9 May 1973] 19196/74 Heading C2C Citric acid and derivatives thereof are prepared by epoxidizing itaconic acid or derivatives of formula wherein each of R and R<SP>1</SP> which can be the same or different, is a hydrogen atom or a hydrocarbon radical, and either each of X and X<SP>1</SP> which can be the same or different is -CN, -COOR<SP>2</SP>, -COOM, or -CONH 2  where M is a monovalent metal atom or represents part of a metal atom having a valency of at least two and R<SP>2</SP> is a hydrogen atom or a hydrocarbon radical, or X and X<SP>1</SP> together represent a divalent radical and together with the two carbon atoms to which they are attached form a heterocyclic ring with five carbon atoms to give which is reacted with hydrocyanic acid or a cyanide, and the cyanohydrin hydrolysed. An example describes the preparation of the the trimethyl ester of citric acid through sodium salt of epoxyitaconic acid, prepared by the reaction of hydrogen peroxide on itaconic acid in the presence of sodium tungstate.
Patent GB-1167307-A (GB)
Title: Index Mechanism for Driving the Gear Train of a Watch.
IPC: G04B11/04
Filed: 1968-04-23
Abstract: 1,167,307. Clocks and watches. HAMILTON WATCH CO. April 23, 1968 [Sept. 20, 1967], No.19207/68. Heading G3T. Mechanism for driving the gear train of a watch, e.g. by transforming the electrically maintained oscillations of a balance wheel into a uni-directional rotary motion of an index wheel, comprises a pallet 18 rockable about a pivot 20, and having arms 30, 32 provided with portions 38, 50 for alternatively engaging the teeth 34 of an index wheel 36 at substantially diametrically opposite sides of the latter, to impart forces substantially tangential thereto to rotate it stepby-step to drive the gear train (not shown). The pallet 18 is rocked by a pin 14 carried by a roller 12 oscillatable with the balance staff 10, the pin 14 successively engaging opposite sides of a motor 26 in the pallet 18. Pins 28 limit the rocking movement of the pallet 18 and may comprise permanent magnets. The contact faces of the pallet 18 may have synthetic jewel inserts when the wheel 36 is of metal, or the wheel 36 may be of plastics material.
Patent GB-1210619-A (GB)
Title: Moulding apparatus for use in the manufacture of moulded footwear
IPC: B29C35/00
Filed: 1969-04-15
Abstract: 1,210,619. Boot lasts. SVIT, NARODNI PODNIK. 15 April, 1969 [6 May, 1968], No. 19212/69. Heading B5A. Two boot last heads 2, each comprising an expansible resilient last 5 filled with liquid 6 supplied from a cylinder 7, are each alternatively fitted with a lining sock and blanks of unvulcanized rubber thereon and manually displaced, by a handle 3, into a position wherein the last 5 is enclosed between outer heated vulcanizing mould halves 12 and the last 5 is expanded by liquid forced from the cylinder 7 as a piston 8 is displaced therein by the engagement of a pneumatic, hydraulic, or mechanically actuated pressure multiplying device located adjacent the mould halves 12. In the pneumatically actuated device shown, high-pressure air is intermittently admitted above a piston 16, of larger area than piston 8, to displace piston 16 downwardly whereby a projecting centering core 17 and spring-loaded pawls 18 engage and displace the piston 8 to expand the last 5, the moulding pressure thereof being increased during moulding by increasing the pressure above piston 16. After completion of vulcanizing, the last 5 is collapsed when piston 8 is raised as the pressure above piston 16 is relieved and this is lifted by low-pressure air constantly admitted therebeneath, the pawls 18 disengaging from piston 8 as it abuts a stop ring 11.
Patent GB-1461591-A (GB)
Title: Gas desorption from liquids
IPC: B01D19/00
Filed: 1973-04-24
Abstract: 1461591 Degassing liquids BRITISH HYDRONIECHANICS RESEARCH ASSOCIATION 11 April 1974 ![24 April 1973] 19214/73 Heading B1M A liquid is degassed by passing it under pressure to a nozzle 1 the outlet of which opens into a rectilinear desorption tube 3, the inlet end of which is of greater cross-section than the outlet of the nozzle and the other end of which is enclosed by a receptacle 4, wherein the length of the tube 3 is such that the jet 2 of liquid will contact the entire inner periphery of a part of the tube downstream of the nozzle to define an isolated space 8 of relatively low pressure. The spread of the jet may be assisted by a baffle 6 mounted downstream of the nozzle or by means mounted within the nozzle itself, e.g. vanes to impart rotary motion of liquid leaving nozzle (Fig. 2 not shown) or an axially adjustable conical member mounted coaxially within the nozzle (Fig. 3 not shown). The liquid jet containing bubbles of desorbed gas passes into the receptacle 4 from where liquid is removed by pump 12 and gas by pump 11. Pump 12 is controlled by a liquid level sensor 13 to maintain a free surface 10 of liquid in the receptacle. Suitably, the tube 3 feeds upwardly into the receptacle (Fig. 5 not shown) and a plurality of tubes may feed into a single receptacle. The treated liquid may be completely or partially recycled through the apparatus or a plurality of such apparatus may be arranged in series. The liquid fed to the nozzle may be heated to aid desorption. Examples of the desorption of oxygen from water are given.
Patent GB-401802-A (GB)
Title: Improvements in or relating to the construction of glass roofs and like glazed coverings
IPC: E04D3/08
Filed: 1932-07-07
Abstract: 401,802. Glazing roofs. BUCHANAN, D. G., 19, Routh Road, Wandsworth, London. July 7, 1932,No. 19261. [Class 20 (iii).] A glazed roof for greenhouses and other buildings comprises glass sheets 1 of which the upper edge 3, except in the case of the ridge pane, is inclined to the sides so as to lead condensed moisture to gutters 5 at the side or sides. The invention may be applied to roofs having a lateral slope as described in Specification 322,073, [Class 20 (iii), Doors &c.], the lateral slope being considerably reduced. A glazing clip for the overlapped edges is shown in Fig. 7 and an end stop 16, to be applied by hooks 12 to the wall-plate and secured by a screw at 14 to the end of a rafter, is shown in Fig. 9.
Patent GB-479934-A (GB)
Title: Improvements in and relating to road wheel or like structures
IPC: F02B57/10
Filed: 1936-07-11
Abstract: 479,934. Radial - cylinder engines. LIGHTMAN, B. July 11, 1936, No. 19279. [Class 7 (ii)] [Also in Groups XXVI and XXVIII] A road wheel or like structure encloses a radial revolving-cylinder internal-combustion. engine or pump. A casing or rint 1 is revolubly and eccentrically mounted on a stationary shaft 2, antifriction bearings 6, 7 being interposed between the rim 1 and web 4 and between the latter and the shaft 2 or its support 8. A tapered hub 9 is rotatably mounted on the shaft and formed integrally with radial cylinders 15. The piston-rods 18 wipe against the inside of the casing 1. Inlet and exhaust passages 24, 25 are arranged in the shaft and the hub. For pump working the inlet and exhaust conduits 31, 41 are closed by flap-valves 36, 45, air being then induced through the port 39 and discharged through the pipe 44 to a receiver. Engine reversal is effected by angular adjustment of the central shaft through the medium of chain-and-sprocket gearing and a hand wheel 53.
Patent GB-493336-A (GB)
Title: Peeling device for fruit, vegetables and the like
IPC: A47J17/18
Filed: 1937-07-12
Abstract: 493,336. Peeling vegetables. KUHN, K. July 12, 1937, No. 19317. Convention date, July 11, 1936. [Class 28 (ii)] The rotary disc of a peeling-machine is formed with a number of peeling elements a standing out from its surface and having cutting-edges b which face the centre of the disc. As the vegetables are thrown outwards by centrifugal force they are caused to roll across the edges b and are peeled. By stamping out the elements a in the form of tongues, openings d are formed for the removal of the peelings as they are cut.
Patent GB-1206503-A (GB)
Title: Improvements in high speed mixing separators
IPC: G21C19/46
Filed: 1968-04-24
Abstract: 1,206,503. Contacting liquids. KERNFORSCHUNG m.b.H. GES. FUER. 24 April, 1968 [25 April, 1967], No. 19358/68. Heading B1F. [Also in Division G6] Two immiscible phases of different specific gravity, such as an aqueous liquid containing uranium and plutonium and an organic extracting liquid for one of the metals, enter mixing chamber 1 by inlets 5 and 6. After mixing by vane pump 7 they pass to rotor 2 where centrifugal separation by vanes 15 allows discharge of heavy phase at 29 to 34 26, 27 and light phase at 28, 30, 31 and 33. The position of the rotor can be relative to the drive means adjusted by rings 16. A return flow for liquid in the passages is given by pipe 20 and an air seal given by compressed air through bore 37. (For Figure see next column)
Patent GB-646711-A (GB)
Title: Improvements in or relating to a process of forming a highly reactive carbon, and the highly reactive carbon resulting from said process
Filed: 1947-07-21
Abstract: A highly reactive carbon is prepared by mixing a hydrocarbonaceous substance with at least 60 per cent, up to, say, 110 per cent, of the stoichiometric proportion of sulphur to the hydrogen content of the substance, heating the mixture to about 649 DEG  C. while maintaining the sulphur in liquid phase to effect the production of sulphurous compounds, and decomposing the mixture at 649-982 DEG  C. to leave a carbon residue.  Suitable hydrocarbons are preferably unsaturated and have a boiling point above 175 DEG  C. and softening points below 200 DEG  C., such as coal, petroleum cracked residuums, coal tar or petroleum pitches, and paraffin waxes.  A liquid hydrocarbon and molten sulphur may be initially heated, with agitation, under atmospheric or superatmospheric pressure, at 150-260 DEG  C. until a major part of the sulphur has reacted before the further heating at 649-982 DEG  C. to distil off hydrogen sulphide.  The initial liquid phase reaction may be accelerated by adding vulcanization accelerating agents for rubber such as benzothiazole derivatives, thiouram sulphides, salts of dithio acids, guanidine derivatives and aldehyde amines.  The reactive carbon may be combined with additional sulphur at, say, 700-982 DEG  C. to form carbon disulphide in a batch or continuous process, e.g. by suspending or fluidizing the finely-divided carbon in sulphur vapour.
Patent GB-151431-A (GB)
Title: Improvements in diving-apparatus for raising sunk ships
IPC: B25J1/10
Filed: 1919-08-07
Abstract: 151,431. Christensen, K. H. A. Aug. 7,1919. Diving; diving-tools.-In a diving-chamber for use in raising sunken vessels and provided with gripping-members 10, lines 16 are attached to the gripper jaws for guiding a cross-piece 17 through which is passed a chain 18 to be attached to the vessel. The chamber is provided with a ballast compartment 3, a counterweight 26, and adjustable bars 20 for engagement with the vessel.
Patent GB-1104183-A (GB)
Title: Preparation of ª‡,ª‡-disubstituted -ª‰-propiolactones
IPC: C07D315/00
Filed: 1966-05-03
Abstract: a ,a -Disubstituted-b -propiolactones of general formula <FORM:1104183/C2/1> wherein R2 is an alkyl group of 1 to 4 carbon atoms and R3 is an alkyl group of 1 to 4 carbon atoms or a phenyl group, are prepared by thermally decomposing a b -acyloxy-2,2-disubstituted propionic acid of the general formula R1COOCH2.C(R2)(R3).COOH, wherein R1 is a hydrogen atom or a methyl or ethyl group.  The thermal decomposition is preferably carried out in the presence of a catalyst which may be a metal compound or metal base capable of forming the propionic acid salt, e.g. an oxide of copper, silver, magnesium, calcium, zinc, barium, cadmium, aluminium, cerium, thallium, silicon, tin, lead, antimony, bismuth, chromium, manganese, iron, cobalt or nickel or an acetate of lithium, sodium, potassium, magnesium, zinc, cadmium, thallium, cerium or lead, preferably deposited or shaped with a carrier, e.g. pumice, silica gel, or kieselguhr.  The decomposition is preferably carried out in the gaseous phase in the presence of an inert carrier gas at temperatures between 220 DEG  and 380 DEG  C. and pressures between 10 and 100 mm. Hg.
Patent GB-222262-A (GB)
Title: Improvements relating to the underframes or chassis of perambulators and similar vehicles
IPC: B62B9/18
Filed: 1923-08-01
Abstract: 222,262. Baker, H. V. Aug. 1, 1923. Springs, arrangement of and mounting undercarriages on; guiding vertical play; axles.-An underframe for a perambulator or similar vehicle is provided with forwardly and rearwardly extending radius bar-like or U-shaped members 8, 9, incapable of motion relatively to the frame and supporting at their lower and outer comers, the lower ends of rods &c. 13, Fig. 4, which form guides for sparing controlled axle-bars 17. The axle-bars 17 are connected to stub-axles 19 by cranked members 17<a> which are recessed at 17<b> to receive non-metallic tubular bushes 20 sliding on the rods &c. 13 which are secured at 14, 16 to the members 8, 9 and frame 7 respectively. Compression springs surrounding the rods &c. 13 above the axle bars are secured at their upper ends by the connections 16 and, at their lower ends, fit over the bushes 20. Springs 18 may be provided beneath the axle bars. Strengthening bars 17a may be riveted at 17<e> to the axle bars. The lower face of the bush, in addition or in lieu of the arrangement shown in Fig. 4, may be flanged to fit in a hole in the member 17a. The U-shaped members 8, 9 are connected at 10, 11 to the frame 7 and are secured together by a rivet &c. 12.
Patent GB-493657-A (GB)
Title: Improvements in resilient struts for use more especially in connection with tanks and the like
IPC: F16F9/06
Filed: 1937-07-16
Abstract: 493,657. Shock - absorbers. RIBBESFORD CO., Ltd., and THORNHILL, P. W. July 16, 1937, No. 19773. [Class 108 (iii)] An oleo-pneumatic shock - absorbing strut comprises a pair of cylindrical members 10, 11 arranged longitudinally side by' side, preferably concentrically, one cylinder 10 being substantially completely filled with liquid and the other cylinder 11 containing gas for resilience, while a plunger 18 fitted with a damping head or piston 19 works in the liquid chamber and also acts directly to compress the gas in the other chamber. In the construction shown the cylinders 10, 11 are arranged concentrically, and the inner cylinder 11 is fitted with a floating piston 17 which separates the liquid in the cylinder 10 and part 15a of the cylinder 11 from air contained in the remainder of the cylinder 11 and in the end portion 28 of the plunger 18. The spaces 10, 15a communicate by apertures 16, and the damping head 19 is provided with a number of passages, the combined area of which is greater than the total area of the apertures 16, but through which in one direction of movement of the head 19 the flow is restricted by an annular flutter valve 23 having only a few relatively small passages 25. During an inward movement of the plunger 18, liquid is displaced in the cylinder 10 from one side of the head 19 to the other substantially freely and, except under very sudden shocks, no liquid is forced into the space 15a except the amount displaced by the entrance of the wall of the cylinder 18. The return movement is damped by the action of the valve 23. Leakage of liquid is prevented by rubber packing elements disposed on the pistons 17, 19 and at the various joints.